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sunxi: Implement poweroff support for axp221 pmic

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Adds poweroff support for axp221 pmic.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
This commit is contained in:
Hans de Goede 2015-12-20 16:14:31 +01:00
parent 467e92b357
commit fe4b71b237
3 changed files with 15 additions and 0 deletions
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1
drivers/power/Kconfig
View file

@ -36,6 +36,7 @@ config AXP209_POWER
config AXP221_POWER
boolean "axp221 / axp223 pmic support"
depends on MACH_SUN6I || MACH_SUN8I_A23 || MACH_SUN8I_A33
select CMD_POWEROFF
---help---
Select this to enable support for the axp221/axp223 pmic found on most
A23 and A31 boards.

12
drivers/power/axp221.c
View file

@ -11,6 +11,7 @@
*/
#include <common.h>
#include <command.h>
#include <errno.h>
#include <asm/arch/pmic_bus.h>
#include <axp_pmic.h>
@ -312,3 +313,14 @@ int axp_get_sid(unsigned int *sid)
return 0;
}
int do_poweroff(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
pmic_bus_write(AXP221_SHUTDOWN, AXP221_SHUTDOWN_POWEROFF);
/* infinite loop during shutdown */
while (1) {}
/* not reached */
return 0;
}

2
include/axp221.h
View file

@ -45,6 +45,8 @@
#define AXP221_ALDO3_CTRL 0x2a
#define AXP221_VBUS_IPSOUT 0x30
#define AXP221_VBUS_IPSOUT_DRIVEBUS (1 << 2)
#define AXP221_SHUTDOWN 0x32
#define AXP221_SHUTDOWN_POWEROFF (1 << 7)
#define AXP221_MISC_CTRL 0x8f
#define AXP221_MISC_CTRL_N_VBUSEN_FUNC (1 << 4)
#define AXP221_PAGE 0xff